Inorganic Chemistry, Vol.50, No.20, 10056-10069, 2011
The Chemistry of Cadmium-Thiocarboxylate Derivatives: Synthesis, Structural Features, and Application As Single Source Precursors for Ternary Sulfides
Novel heterobimetallic complexes [(PPh3)(2)Cu(mu-SCOPh)(2)Cd(SCOPh)] (2a), [(PPh3)(2)Cu(mu-SCOth)(2)Cd(SCOth)] (2b), [(PPh3)(2)Ag(mu-SCOth)(2)Cd(SCOth)] (3a), [(PPh3)(2)Ag(mu-SCOth)(2)Cd(H2O)(SCOth)] (3b), [(PPh3)(2)Ag(mu-SCOPh)(2)Cd(SCOPh)] (3c), and a bimetallic complex [PPh3Cd(mu-SCOth)SCOth](2) center dot CH2Cl2 (5) (th = thiophene) were prepared and characterized by single crystal X-ray diffraction analysis. A coordination polymer [Cd(SCOPh)(2)](n) (4) has also been characterized structurally that exhibited metal-like electrical conductivity. The heterobimetallic complexes on pyrolyzing under controlled conditions yielded ternary sulfides of composition CuCd7S8, CuCd10S11, Ag2Cd8S9, and Ag2Cd5S6, which have been characterized by SEM-EDX and X-ray diffractometry. Photophysical properties and electrical conductivities of the sulfides have also been studied.